Solutions catalogue

Combined heat and power (CHP) plants

Wärtsilä combined heat and power (CHP) plants are designed to meet the customer's specific needs, be it steam generation, district heating, hot or chilled water, or a combination of the above. As flexibility within the power system will be increasingly required in order to integrate growing shares of renewables in a cost-efficient and secure manner Wärtsilä CHP technology, with it’s fast starting and stopping capabilities, can achieve total efficiencies as high as >90%.

Our CHP plants can run on a wide range of liquid, gaseous and bio fuels, all the while securing low emissions and high efficiency. The heat recovery systems used in our CHP plants are of the post engine “hang-on” type, and thus don't directly influence engine performance or operation. The engine will yield the same high electrical efficiency and output, regardless of the rate of heat production.

Depending on the installation specific heating and/or cooling requirements, plant location and the seasonal variations in ambient conditions, the plant can be equipped with standardized heat recovery and chiller solutions, with absorption chillers for heat recovery and electrically driven chillers for covering the peak demands. Wärtsilä lifecycle solutions and performance guarantees ensure optimised efficiency and performance of the plant.
  • Bremen, Germany
    Bremen, Germany 105 MW of electrical and 93 MW of district heating output

    Bremen, Germany

  • DREWAG, Germany
    Wärtsilä’s state-of-the-art gas engine technology will provide flexibility and black start capability to DREWAG, the local utility company in Dresden, Germany. The combined heat and power (CHP) engine power plant will produce electricity and district heating simultaneously. Upon completion, it will be the only power plant that can restart the Dresden grid in case of a power blackout.

    DREWAG, Germany

  • Kraftwerke Mainz-Wiesbaden AG
    Smart Power Generation in Germany –enabling KMW AG to operate profitably in the increasingly volatile power market and provide climate-friendly district heating to the community.

    Kraftwerke Mainz-Wiesbaden AG

  • Cheong Soo, South Korea
    In May 2007, Wärtsilä was awarded a contract from JB Enertek Co., Ltd., South Korea, to deliver engineering and equipment (EEQ) in two phases for a 25.3 MWe combined heat and power plant (CHP). The plant is located in Cheong Soo community in Cheon Ahn City, approximately 100 kilometres south of Seoul, Korea.

    Cheong Soo, South Korea

  • Makuhari, Japan
    The growing demand for natural gas as fuel and the increasing importance of environmental values in Japan have encouraged investments in gas-fired power generation systems. The green point of view has also contributed to the rise of interest towards trigeneration energy sources.

    Makuhari, Japan

  • Sasolburg, South Africa
    "Our old generating equipment was replaced with more efficient units. New power plant technology is used to meet increased demand for electricity. Gas-engine technology allows us to reduce our carbon footprint by more than 40%."

    Sasolburg, South Africa

  • Györ-Szol
    A maintenance agreement ensures plant availability.


  • Valkeakoski, Finland
    The energy company Valkeakosken Energia, owned by the City of Valkeakoski in southern Finland, provides its citizens with electricity, district heating and natural gas. When the electricity market was deregulated, Valkeakosken Energia decided to be a proactive participant in the market by investing in its own combined heat and power production to ensure competitive electricity and district heating prices for their customers.

    Valkeakoski, Finland

  • Ringkøbing, Denmark
    Ringkøbing district heating company in Denmark has invested MEUR 4.2 to installing the extremely efficient and flexible Wärtsilä 34SG spark-ignited lean-burn gas engine. This was, at the time of commissioning, also Wärtsilä’s first commercial 20-cylinder gas engine.

    Ringkøbing, Denmark

  • Győrhő, Hungary
    The Győrhő combined heat and power (CHP) plant, which supplies power to the city of Győr in Hungary and heat to the city’s district heating system, is an example of fast-track supply in two phases. The total plant features three Wärtsilä 18V34SG gas engines, which produce an aggregate output of 17 MWth and 18 MWe.

    Győrhő, Hungary

  • Manisa, Turkey
    Wärtsilä Corporation was awarded a major power plant contract for an 84.8 MWe replacement and extension of an existing diesel power plant at Manisa in western Turkey. It involved the first Wärtsilä 50DF generating sets for a power plant installation, while Wärtsilä 34SG sets were added in the extension. The new plant allowed a change of fuel from heavy fuel oil to natural gas.

    Manisa, Turkey

  • Barajas Airport, Spain
    Supplying electricity, heating and cooling for one of Europe's busiest airports.

    Barajas Airport, Spain

  • Linate Airport, Italy
    In June 2007, Wärtsilä and EuroPower SpA commenced operation of a 24 MWe combined heat and power (CHP) plant at Linate airport, Milan in Italy.

    Linate Airport, Italy


Webinar recording
Duration: 50 min

Downloads & links

Sector coupling key to the future of...

Germany has been a strong advocate for the transition to renewable energy, particularly in the electricity...
25 June 2020
  • Twentyfour7. article

Heat and power for Energiewende, Germany’s...

Wärtsilä has recently been awarded contracts to develop hundreds of megawatts of combined heat and power...
31 May 2019
  • Twentyfour7. article

Contact info

If you want to know more about our CHP plants, please contact

Marjo Ketola
Technology & Product Marketing Manager
Wärtsilä Energy Business

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